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Saranac, Michigan | Jim Doolittle,
Thanks for the answers. I was quite surprised by the point that it is not believed that and " N credit" exists .Although I certainly am not in a position to argue the point, practical experience has shown likely much better corn in rotation with beans. Corn on corn here without added N appears to produce roughly a 30 bu. drop on 140 bu corn. Has anyone addressed that? Could it be something else that is going on?
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Illegal to spread manure on soys in Iowa???
